Specification Brand : Qqmora BulletPoint1 : DURABLE: These couplers are made of high quality plated iron material which is strong and durable., 10mm bar flange coupler BulletPoint2 : FEATURES: Flange coupling is a special coupling that can fix the shaft on a flat surface., 10mm flange coupling model motors, 10mm bar flange coupler BulletPoint3 : Sturdy and Durable Made of premium iron material with electroplating, these couplers are sturdy and durable., 10mm bar flange coupler BulletPoint4 : 10mm flange coupling model motors, Application This type of coupling is mostly used to couple electric motors. BulletPoint5 : A flange coupler is a kinds of special coupler that can fix a shaft on a flat surface. DriveSystem : External Hex ExteriorFinish : Iron FinishType : Finish ItemName : 10mm Flange Coupling Model Motors Coupler Qqmora 2pcs M3 Rigid Flange Coupling Motor Shaft Coupler Connector ID 6mm OD 10mm 4x3x2 ItemPackageDimensions_Height : 2 centimeters ItemPackageDimensions_Length : 4 centimeters ItemPackageDimensions_Width : 3 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : set-screw-couplings Manufacturer : Qqmora Material : Iron MetalType : Iron NumberOfItems : 1 PartNumber : Qqmorahv28gtka3o698 ProductDescription : Features: 100% brand new and high quality. Made of premium iron material with electroplating, these couplers are sturdy and durable. A flange coupler is a kinds of special coupler that can fix a shaft on a flat surface. The coupler allows to mount other accessories on the shaft easily. This type of coupling is mostly used to couple electric motors.